Loctite 97504 User manual

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48

Contents

1 INTRODUCTION.................................................................... 50

2 SAFETY ................................................................................. 52

2.1 How to Use this Operating and Service Manual.................................................52

2.2 Informal Safety Measures...................................................................................53

2.3 Intended Use, Warranty......................................................................................53

2.4 Qualification of Operating and Service Staff.......................................................53

2.4.1 Operating staff ....................................................................................................54

2.4.2 Servicing staff .....................................................................................................54

2.5 Organisational Measures....................................................................................54

2.6 Risk Sources.......................................................................................................55

2.7 Safety Systems...................................................................................................55

2.8 Preparation for Operation – Visual Inspection....................................................56

2.9 Safeguard Against Unauthorised Use.................................................................56

3 OPERATION .......................................................................... 57

3.1 Dispensing Station – Total View.........................................................................57

3.2 Displays and Operating Elements.......................................................................58

3.3 Initial Start-up......................................................................................................59

3.3.1 Unpacking...........................................................................................................59

3.3.2 Transportation.....................................................................................................59

3.3.3 Installation...........................................................................................................59

3.3.4 Initial priming with product ..................................................................................60

3.4 Calibration of pumps...........................................................................................62

3.5 Replace Product Container.................................................................................64

3.6 Factory Settings..................................................................................................66

3.7 Operator menu settings ......................................................................................66

3.7.1 Volume ratio........................................................................................................67

3.7.2 Product specific adaptation of the dispensing system........................................68

3.7.3 Maximum pump capacity....................................................................................69

3.7.4 Operating mode..................................................................................................69

3.7.5 Dispense time.....................................................................................................70

3.8 Service menu setup............................................................................................71

3.8.1 Enter password...................................................................................................72

3.8.2 Retract time.........................................................................................................72

3.8.3 Automatic mixer flush cycle (optional) ................................................................73

3.8.4 Flush time (optional) ...........................................................................................74

3.8.5 Enter calibration factor........................................................................................75

3.8.6 Select User Interface language...........................................................................75

49

Contents

3.9 Shutdown............................................................................................................76

3.10 Return to Operation ............................................................................................76

4 OPERATOR MENU PROGRAMMING................................... 77

4.1 Operator Menu Flow Chart .................................................................................77

4.2 Service Menu Flow Chart....................................................................................78

4.3 Messages............................................................................................................79

5 MAINTENANCE..................................................................... 80

5.1 Service Intervals .................................................................................................80

5.2 Cleaning the Pump .............................................................................................80

5.3 Replacing Stator / Wiper Ring.............................................................................81

5.3.1 Unscrew pump unit.............................................................................................81

5.3.2 Disassembling the pump – Removing the stator ................................................82

5.3.3 Replacing the wiper ring .....................................................................................82

5.3.4 Re-assembling the pump – Re-installing the stator............................................83

5.4 Cleaning the Meter-Mix Dispense Gun...............................................................85

6 TROUBLESHOOTING........................................................... 85

7 SPARE AND WEARING PARTS........................................... 86

8 TECHNICAL SPECIFICATION.............................................. 87

8.1 Declaration of Conformity ...................................................................................87

8,2 Terminal Block Pin Assignment X1, X2 and X3.................................................88

8.2.1 Terminal Block X1 Motor A.................................................................................88

8.2.2 Terminla Block X2 Motor B.................................................................................89

8.2.3 Terminal Block X3 Signal Exchange...................................................................89

8.2.4 Pin Assignment XS1 Start...................................................................................89

8.2.5 Pin Assignment XS 2 Docking Station for meter-mix Dispense Gun..................89

8.3 Technical Data....................................................................................................91

8.4 Approved Products .............................................................................................92

9 DISPOSAL............................................................................. 93

50

1 Introduction

Dear Customer,

Congratulations on your purchase of this dual dispensing system. We are sure it will

fully meet your needs and will provide smooth and trouble free operation.

Properly handled and maintained, the system will give you many years of efficient

use.

Of course we also need your support to help us ensure ongoing compliance with top

quality standards. We are always on the look out for ways to improve our products

and would appreciate your comments or suggestions.

Any questions? Please contact us:

Henkel Loctite Deutschland GmbH

Arabellastraße 17

D-81925 München

Phone +49 (0)89 – 9268 - 0

Fax +49 (0)89 – 910 1978

Internet www.loctite.com

"Loctite" is a Registered Trademark of Henkel Loctite Corporation

51

1 Introduction

Theory of operation

This Dual Rotor Pump Dispenser has been specially designed and tested for

application of the Loctite

®

Hysol

®

range of products.

It has two separately operating pump units, which can be controlled individually.

These pumps deliver a nearly pulsation free flow of material and offer efficient

performance at high pressure.

The electronic pump control system provides accurate control of product component

mixing ratios and allows all settings required for trouble-free operation.

Mixing of the two parts of the product occurs within the pneumatically operated

meter-mix dispense gun. Depending on the setting, material is dispensed either timed

or manually controlled.

To prevent post-dispense dripping, an adjustable amount of product is sucked back

by reversing the direction of rotation.

Positioning of the meter-mix dispense gun in the optional docking station is detected

by an induction sensor, where the electronic pump control system triggers a purging

cycle which can be set to run at regular intervals. This effectively prevents mixers

from becoming blocked and maintains full operational capability of the dispensing

station also in case of prolonged idle times.

The pumps are equipped with quick-connect clamping fixtures for connection to the

drive motors. Whenever a different product is to be processed, the meter-mix

dispense gun with its tubes and lines can be replaced without the use of tools.

Product availability (filled product container), maximum operating pressure and the

pump motors are monitored electronically. In case of failure the electronic pump

controller shuts the dispensing station off and displays a relevant error message.

A receptacle prevents deformation of the container as well as product escaping

during the operating process. 3 centering pins are provided for correct alignment with

the pump unit.

52

2 Safety

For safe and successful operation of the unit, read these instructions completely.

The manufacturer cannot be held responsible for damage or injury of any kind

because of misuse or improper application or because of failure to observe safety

instructions or warnings.

Be sure to keep this manual handy for future reference.

Please refer also to the relevant Technical Data Sheet for the adhesive to be

processed. Download from www.loctite.com or request the Technical Data Sheet

and the Safety Data Sheet (acc. to EU Directive 91/155/EC): Contact

Henkel Loctite Deutschland GmbH

+49 89 92 68 11 67 for the English language version of the data sheet;

089-92 68 11 22 for the German language version of the data sheet.

Be sure to follow the instructions of these data sheets!

2.1 How to Use this Operating and Service Manual

Wherever possible, this manual has been structured in a way to feature text and the

relevant illustration on the same page for easy understanding.

Callout numbers are given for cross-reference to any component displayed in an

illustration.

For clarity, legends in illustrations always refer to only one of the two mirrors inverted

pump units.

If the component referred to is a spare part, it will be listed in the spare parts list –

see Section 7.

The following symbols are used:

• Operational step

1. Operational step, numbered consecutively

– List

(1) (A) Item references for components in the illustration

*

Refers to a Note

Text in italics

Refers to a display message; Enter key, electronic pump controller

Bold text

Outline, Note

Danger!

Refers to safety regulations and requires safety measures that protect

the equipment operator or other persons from injury or danger to life.



Note

Gives recommendations for better handling of the unit during

operation or adjustment as well as for service activities

Mechanical installation may present crush hazard!

53

2 Safety

2.2 Informal Safety Measures

Always keep this manual readily available at the operating site.

In addition to the operating manual, provide and observe general and local

regulations for accident prevention and environmental protection.

All safety and hazard warnings on the equipment must always be kept legible.

2.3 Intended Use, Warranty

The Dual Rotor Pump Dispenser has been designed for accurate dispensing of

Loctite

®

Hysol

®

adhesives and sealants.

A list of approved products is provided in Section 8.4. Additional products may be

approved on request.

As the viscosities of the components of Loctite

®

Hysol

®

9463 differ significantly, the

equipment is not suitable for dispensing this product.

For any further questions relating to dispensing capabilities for this product please

contact your local Henkel Loctite Technical Service department.

Without the express written approval by the manufacturer, any

– modifications or additions

– use of unauthorised products

– use of non-original spare parts

– repairs performed by persons or companies not authorised by the

manufacturer

may result in loss of guarantee and warranty.

We cannot be held responsible for damage or injury of any kind because of failure to

observe the instructions in this Operating and Service Manual.

The dispensing station is not intended for use in potentially explosive areas.

2.4 Qualification of Operating and Service Staff

The provider/operator of the equipment is responsible for providing staff with the

required qualification. He has to make sure that only authorised staff will be assigned

to work on the dispensing station. We recommend that operating and servicing staff

should be required to provide confirmation in writing that they have taken note of the

instructions in this Operating and Service Manual.

Work inside the equipment, e.g. at the terminal block, may be accomplished

only by adept maintenance staff, see section 2.4.2.

54

2 Safety

2.4.1 Operating staff

Any persons operating and working with the dispensing station must be sufficiently

trained for the activities involved. The contents of the Operating and Service Manual

must have been read and understood.

2.4.2 Servicing staff

Any persons charged with maintenance and repair of the dispensing station must be

qualified and

– Must be sufficiently trained for the activities involved

– Must be aware of and comply with the pertinent technical rules and safety

regulations

– Must have read and understood the contents of the Operating and Service

Manual.

A person is qualified if he/she has an educational background and experience

providing adequate knowledge in the fields of hydraulics, pneumatics, materials

handling and electrical engineering, and is sufficiently familiar with the pertinent

occupational health and safety and accident prevention procedures, the regulations

and generally accepted engineering standards (DIN standards) to be capable of

assessing if the dispensing station is in a safe operating condition.

2.5 Organisational Measures

The provider/operator of the equipment is responsible for providing staff with the

required personal protective equipment. All existing safety systems must be checked

at regular intervals. Wear safety goggles and protective suit during operation and

cleanup to protect against any chemical splashes.

55

2 Safety

2.6 Risk Sources

The following risk sources may be associated with the operation of the dispensing

station:

Failure to comply with these instructions could result in material

damage and death or serious injury of humans.

– Depending on the pump capacity setting, product will be fed at a pressure of up to

40 bar. Product escaping from defective tubing or components may result in

injuries and material damage due to splashing product.

– During initial start-up and subsequent transfer of product to refill the reservoir, air

bubbles trapped within the product may cause uncontrolled squirting from the

meter-mix dispense gun. Tubes should always be depressurised completely before

starting operation.

– Wear suitable protective clothing whenever processing chemical or corrosive

materials or products, which pose potential health risks. Comply with safety

regulations and observe the manufacturer’s instructions. Provide adequate

ventilation or exhaust system. Take special precautionary measures whenever

hazardous materials are involved, provide e.g. an eyewash station in case of

corrosive chemicals.

– Only staff possessing special skills and experience must be allowed to handle

pneumatic, hydraulic and electrical equipment.

When the pump unit is lowered onto the product container there is a

risk of fingers getting crushed. An appropriate safety label is affixed to

the dispensing station!

2.7 Safety Systems

The electronic pump control system monitors

– The operating pressure,

– Product availability in the two containers, and

– Electrical connection of the two pump motors.

If

– Operating pressure exceeds 40 bar,

– There is no product left in one or both containers,

– One of the two electrical pump motor terminals is not connected,

the dispensing station is shut off and a relevant error message is displayed. The

error must be corrected and the fault signal reset to resume operation.

56

2 Safety

2.8 Preparation for Operation – Visual Inspection

Perform a visual inspection of the dispensing station every day before you start to

work and before each change of shift. If there are any doubts regarding correct

operational capability, the system must be shut down immediately and presented to

qualified staff for inspection before operation is continued.

2.9 Safeguard Against Unauthorised Use

An effective safeguard against unauthorised use can be achieved by

– Removing the power cord, and

– Removing the fuse plug (from power switch).

In addition to any action taken, position a clearly visible and legible written notice,

e.g. on the power switch, to prohibit operation of the unit.

57

3 Operation

The safety instructions in Section 2, "Safety" must have been read

and understood before operating the dispensing station.

3.1 Dispensing Station – Total View

A

Control cabinet

K

Connector, pneumatics

B

Base plate

L

Carrying handle

C

Pressure switch

M

Power switch, Fuse plug, Socket

D

Pump motor

N

Receptacle

E

Planetary gearbox

O

Vent screw

F

Type plate

G

Locking screw

P

Electronic pump controller with

display

H

Pump unit

R

Speed selector switch (output)

S

Follower plate with wiper ring

T

Meter-mix Dispense Applicator

U

Docking station for meter-mix

dispense applicator (optional)

J

Tubing set consists of:

– Feedlines,

– Compressed air hose

meter-mix

dispense applicator

0 (applicator

closed)

– Compressed air hose

meter-mix

dispense applicator I (applicator

open)

W

Connector, docking station for meter-

mix dispense applicator

58

3 Operation

3.2 Displays and Operating Elements

Display, Electronic Controller

The dispensing station is equipped with an electronic controller. For descriptions of

settings please refer to:

– Sections 3.7.1 ff

– the flow chart in Section 4.

The display of the electronic controller reads as follows when the system is in ready

state:

or

Display Short description Page

Cont. operating mode (optional, if selected: Timed mode nn.n sec.) 69

A : B Ratio by volume, product A vs. B 66

Max. Maximum speed of rotation (output), pump motor 69

OK Jump to next menu

* Jump to service menu (push 2x)

ALT Jump to dispense time setup

(Go to the above-mentioned pages for a detailed description of display items)

1 Speed controller (pump output) 0 – 100 %

2 ESC, Leave the current operation or setup menu

3 Cursor, Input adjustments and navigation

4 OK, Acknowledge, Jump to next menu

5

*

Key, Access to service menu

6

Display

7 ALT, if ALT appears, Jump directly to dispense time setup

7

DualRotorPumpDispenser

OK

Cont.

A:B

2.00:1

Max.

70%

OK

Time

9.2 sec.

A:B

2.00:1

Max.

70%

OK

59

3 Operation

3.3 Initial Start-up

3.3.1 Unpacking

• Remove shipping materials.

• Check that items supplied are complete and match delivery note.

3.3.2 Transportation

The dispensing station has two carrying handles (L) at the sides – see Section 3.2.

Requires a minimum of two persons to carry.

Suitable for transportation by pallet trucks.

3.3.3 Installation

• Install in a suitable location. Provide:

– Power supply, socket.

– Compressed air supply.

• Position docking station for meter-mix dispense gun (optional).

• Plug connecting cable of dispense gun docking station (U) to connector (W)

(on the rear of the dispensing station) (optional).

• For start-up please refer to Section 3.3.4.

Do not switch the dispensing station on. Material damage can result

by running the system without product being pumped through it!

60

3 Operation

3.3.4 Initial priming with product

Preparation

• Switch dispensing station off and safeguard against unauthorised use.

• Disconnect compressed air supply.

• Observe safety regulations.

Positioning of Product Container A

• Raise Pump Unit A (D) to top position and hold.

• Lightly hand tighten the locking screw (G). Pump unit is locked into place in top

position.

• Insert product container into Receptacle (N) and position underneath Pump Unit A,

between the 3 centering pins.

• Unscrew vent screw (O) from follower plate (S).

• Hold Pump Unit A and back off locking screw (G).

• Lower the pump unit slowly until follower plate rests against the container rim.

• Gently press down with your hand to lower Pump Unit A until product flows from

bleed port (Z).

• Lightly hand tightens the locking screw. Pump unit is locked into place.

• Screw vent screw into the bleed port of the follower plate.

• Back off locking screw. Pump Unit A rests by its own weight on top of the product.

Crush hazard: Risk of fingers getting crushed when pump unit is

lowered. Do not allow fingers to get between follower plate and

receptacle and/or product container.

61

3 Operation

Bleeding of Tubing A

• Make a mark on the inside of the product container on a level with wiper ring (S) of

Pump Unit A. Pump operation can be checked by monitoring the movement of the

follower plate (lowering of the wiper ring).

• Unscrew vent screw (Z).

• Connect compressed air supply.

• Switch the dispensing station on.

• Set speed selector switch (R) to medium speed.

• Switch to Service Mode, see Section 3.8.1.

• Disconnect pump motor plug (Y) of Pump Unit B to prevent unprimed pump from

running dry and avoid any unwanted discharge of product B.

• Keeping an eye on the mark, briefly actuate the meter-mix dispense gun. The

pump is discharging product when the wiper ring is coming down.

• Actuate the meter-mix dispense gun until product flows from the bleed port (Z).

Wipe product off with a suitable material (cloth).

• Screw vent screw (Z) back in place.

• Actuate the meter-mix dispense gun until product flows free of bubbles and air

inclusions. Wipe product off with a suitable material (cloth).

Caution: If the wiper ring does not come down within >30 seconds, the pump is not

feeding any product (risk of material damage). Be sure to repeat procedure as

described under heading "Positioning of Product Container A".

Dispensing for the first time from the meter-mix gun may result in

danger due to splashing product. Air bubbles may result in

uncontrolled splashing. Be sure to keep a safe distance and hold the

dispense gun in an appropriate and safe position!

62

3 Operation

Positioning of Product Container B, and bleeding of Tubing B.

Proceed analogously and in a mirror inverted manner, as described above for

Product Container and Tubing A.

3.4 Calibration of pumps

Calibration is achieved by determining the ratio of capacities of the two pump units.

The capacity of pump A is the reference value for pump B. The calibration factor is

used for matching the capacity of pump B with that of pump A.

Determination of pump capacity, Pump Unit A

• Switch the dispensing station on.

• Set calibration factor to 100%, see Section 3.8.5.

• Set volume ratio to 1:1 , see Section 3.7.1.

• Set speed selector switch (R) to medium speed.

• Switch to Service Mode, see Section 3.8.1.

• Disconnect pump motor plug (Y) of Pump Unit B

• Actuate the meter-mix dispense gun (T) for 10 seconds. Catch material dispensed

in a suitable container.

• Weigh amount of material dispensed.

63

3 Operation

Determination of pump capacity, Pump Unit B

– Leave speed selector switch setting unchanged.

– Leave volume ratio setting of 1:1 unchanged.

Proceed analogously and in a mirror inverted manner, as described above for

Determination of pump capacity, Pump Unit A.

Determination of calibration factor

Example for calibration factor calculation:

X = amount of product A discharged 10 grams

Y = amount of product B discharged 11 grams

 Fill measuring cup (30 – 50ml) one third full with water, dispense and read off

the amount discharged.

Formula: X/(Y:100) = calibration factor 10/(11:10) = 90.9 %

 For the description how to enter the calibration factor go to Section 3.8.5.

64

3 Operation

3.5 Replace Product Container

Preparation

• Switch dispensing station off and safeguard against unauthorised use.

• Disconnect compressed air supply.

• Observe safety regulations.

Remove empty product container

• Raise Pump Unit (A) to top position (direction of arrow) and hold.

• Lightly hand tighten the locking screw (G). Pump unit is locked into place in top

position.

• Unscrew vent screw (O) from follower plate (S).

• Pull Receptacle (N) downward until it comes off.

• Pull empty product container downward until it comes off.

• Use suitable tool (spatula, piece of wood) to clean follower plate and wiper ring (B)

to remove coarse contamination from product residues.

65

3 Operation

Install full product container

• Insert product container into Receptacle (N) and position underneath the Pump

Unit, between the 3 centering pins.

• Hold Pump Unit and back off locking screw (G).

• Lower the pump unit slowly until follower plate (S) rests against the container rim.

• Gently press down with your hand to lower the Pump Unit until product flows from

bleed port (Z).

• To prevent additional product from escaping, raise pump unit a bit and lightly hand

tighten the locking screw. Pump unit is locked into place.

• Screw vent screw (O) into the bleed port of the follower plate.

• Back off locking screw. Pump Unit rests by its own weight on top of the product.

Depending on the product being used, air bubbles entrapped after

replacement of the product container may result in uncontrolled

splashing from the dispense gun. Be sure to keep a safe distance

and hold the dispense gun in an appropriate and safe position.

In addition, tubes can be bled as described in Section 3.3.4,

Bleeding of Tubing A .

Crush hazard: Risk of fingers getting crushed when pump unit is

lowered. Do not allow fingers to get between follower plate and

receptacle and/or product container.

66

3 Operation

3.6 Factory Settings

Factory settings of the Dual Rotor Pump Dispenser are as follows:

Menu item Setting

Operator menu

Continuous mode On

Volume behaviour 1.00 : 1

Adaptation 100 %

Max. pump efficiency (range max.) 100 %

Dispense time 0.1 sec.

Service menu

Retract time 0.3 sec.

Automatic mixer flushing every 10 min

Flush time 0.1 sec.

Calibration factor 100 %

Interface language English

3.7 Operator menu settings

The electronic pump control system allows settings for all parameters required for

operation. The operator menu allows the following settings:

Menu Page

3.7.1 Volume Ratio 66

3.7.2 Product specific adaptation of the dispensing system 68

3.7.3 Maximum pump capacity 69

3.7.4 Operating mode (continuous or timed mode) 69

3.7.5 Dispense time 70

 Refer to Section 4.1 for the Operator menu flow chart.

67

3 Operation

3.7.1 Volume ratio

Setting reflects output of Pump Unit A vs. Pump Unit B. The output amount of

pump B is the reference value and is assigned a factor of 1.

 The volume ratio setting is indicated in the Operation display.

Volume ratio setup:

• With the dispensing station in ready state, push OK button - display indicates

volume ratio.

• Use arrow keys to enter desired value.

Arrow key assignment / setting range:

left: -0.5; right: +0,5; up: +0,05;

down: -0,05; setting range: 1.0 – 6.0

• Push OK button to save the setting – display indicates "next menu item". Push

ESC key to leave the operator menu – display indicates Operation.

 For volume ratio setup refer to and follow exactly the instructions on product

containers.

OK/ESC

A:B 1.00:1 100%

*

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